Guess what's the Profession

A Tale of my neighbours ...

Our neighbourhood are terrance houses, back in the 80s where 1 1/2 story houses are still built by developers amongts mostly 2 story houses. These houses have a small porch which can take in only one car, and beyond the main gates to the house, can generally have enough space for another car, a 3rd car will be really tight and hoarding part of driving side of the road.

My neighbour lives 3 young persons in their late 30s and early 40s, by the end of the story, I 'd like you to guess what are the professions of these 2 persons (my neighbour), a brother and his elder sister!

Firstly, they have 4 cars. 1 BMW, 1 Mercedes, 1 Vios, and 1 monster Ford Pickup Truck. The brother owns the BMW and that monster truck, while the elder sister I think drives the BMW!

A few weeks ago, with our already known limited spaces for parking, the brother parked his car in front of another neighbours house blocking entrance and exit from that house. That neighbour drives a Kelisa! That Kelisa neighbour came home with some guess, not able to open the gate to drive his car in, honked for a very long time, only after more than 30 minutes, the brother came out furiously to shout at the Kelisa neighbour and his guess for honking and them touching his oversized Mercedes 6 series. Some of the most disgusted foul language cross-fired between them, mostly from that brother.

Just to side-track before the story continues, the brother next door wears very neat long sleaves shirts (sometimes short sleave) with 2 leather trolley bags and carries a suit/garment bag for his suit to work. It seems that when he goes out with that attire, he returns home only several weeks later. Sometimes, I see him carries a load of durian at the back of his monster ford pickup truck. He is divorced with one kid living with him and another parted with his wife. His ex-wife is a successful business woman. 

The exchange of non-PG rated foul languages went on for quite some time and them pushing each other and the brother threatened to get his gangster friends to beat him up. Seeing this, the Kelisa neighbour's guess rang for the police. Indeed, the police came, not only the brother did not stop his invation of foul languages and fighting gestures but extended it to the police. The brother looked at the police's rank insignia and threatened to get his high ranking police friends to remand/punish that police. The story need not go on, but what do you think is the profession of this brother ? 

Oh, wait a minute! a day later, his elder sister while walking their dog, collect the dog poo and throw them into that neighbours house compound! and what do you think is the profession of the brother's elder sister ? 

No, they are not SAP Consultants. 
You wouldn't have guess it anyway.

The brother is a Pilot while her sister is an Environmentalist.